> Can a difference between detected network speed 
> and real network speed affect operation.

Not that I've ever seen.  The only time I've
ever seen a problem is with respect to duplex - 
if the PHY reports either full or half, and 
the nic must be programmed wrt duplex in the
callback, that can cause problems.

> Under VMWare ESX QNX6 detect network speed 
> to be 10.00Mb but it's MUCH faster then that.  
> Can that create problem?

Not AFAIK.

--
aboyd